Heating container

Abstract

Provided is a heating container in which a space divided by a partition is provided on a bottom of a container unit formed of a nonmetallic material with high heat transfer efficiency such as ceramic and a heating unit which generates heat using an induction magnetic field generated using a wireless power consortium method is formed therein, a display unit which emits light due to heat generated by the heating unit or a display unit which changes emitted color depending on a change in a temperature of the heat generated by the heating unit is formed on the outside of the container unit, and a heating temperature of the container unit formed of nonmetallic material is sensed and the heating temperature of the heating unit is controlled through communication between a power transmission unit and a power receiving unit depending on the sensed heating temperature.

What is claimed is: 
     
         1 . A heating container comprising:
 a container unit configured to be filled with contents to drink or eat and to be formed with an independent containing space divided by a partition on a bottom thereof;   a heating plate configured to be contained in the containing space of the container unit to be closely attached to the partition and to perform heating through a magnetic field induced by a transmission coil of a power transmission unit which receives external power through a wireless power consortium method to transfer heat to the container unit;   a power receiving unit configured to be contained in the containing space of the container unit, to comprise a receiving coil which wirelessly receives voltages through the magnetic field induced by the transmission coil using the wireless power consortium method, and to control a heating temperature of the heating plate while controlling a strength of the magnetic field by adjusting an amount of the voltages wirelessly received through the receiving coil; and   a cover unit configured to form a bottom surface of the containing space and to seal and waterproof the containing space.   
     
     
         2 . The heating container of  claim 1 , wherein the power receiving unit comprises:
 a full bridge circuit configured to be connected to the receiving coil and to be driven to preliminarily rectify the voltages received from the receiving coil;   a rectifier configured to be connected to the full bridge circuit and to secondarily rectify the voltages preliminarily rectified as the full bridge circuit is driven;   an output section configured to output the voltages secondarily rectified by the rectifier;   a power output microcontroller configured to receive the voltages output from the output section and the secondarily rectified voltages from the rectifier and to output a control signal for controlling the strength of the magnetic field induced by the transmission coil to control the heating temperature of the heating plate; and   a communication driver configured to control the drive of the full bridge circuit to control the strength of the magnetic field induced by the transmission coil by adjusting the amount of voltages wirelessly received through the receiving coil according to the control signal output from the power output microcontroller.   
     
     
         3 . The heating container of  claim 2 , wherein a temperature sensor connected to the power output microcontroller as a circuit is formed in the containing space of the container unit. 
     
     
         4 . The heating container of  claim 3 , wherein in addition to the voltages output from the output section and the voltages secondarily rectified from the rectifier, the power output microcontroller is mounted with a control program which controls the strength of the magnetic field induced by the transmission coil by controlling a voltage rectification value depending on the drive of the full bridge circuit through the communication driver to control the heating temperature of the heating plate according to the temperature of the container unit sensed by the temperature sensor. 
     
     
         5 . The heating container of  claim 1 , wherein the container unit comprises a display unit configured to be electrically connected to the power receiving unit to receive power therefrom and to display a heating operation state of the heating plate. 
     
     
         6 . The heating container of  claim 5 , wherein the display unit is one of a light emitting diode (LED) which emits light in a solid color depending on the heating temperature of the heating plate and an LED which varies in color of emitted light depending on changes in temperature according to the heating operation state of the heating plate.